Home / 76,324.05-105,321.92-42,329.32

Finding the Fourth Proportional to 76,324.05, 105,321.92 and 42,329.32

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Solution

The fourth proportional to 76,324.05, 105,321.92 and 42,329.32 is: 58,411.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,324.05 : 105,321.92 = 42,329.32 : x
  2. Step 2: Convert to fraction form
    76,324.05/105,321.92 = 42,329.32/x
  3. Step 3: Cross multiply
    76,324.05x = 105,321.92 × 42,329.32
  4. Step 4: Simplify right side
    76,324.05x = 4,458,204,779.74
  5. Step 5: Solve for x
    x = 4,458,204,779.74/76,324.05
  6. Step 6: Final answer
    x = 58,411.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.